Look up one-piece in Wiktionary, the free dictionary.
One Piece is a Japanese manga franchise.
One Piece, OnePiece, or one-piece may also refer to:
- One Piece (1999 TV series), an animated series based on the manga
- One Piece (2000 film), the first film in the franchise
- One Piece (2023 TV series), an American live-action series based on the manga
- One Piece! (1999), a compilation of Japanese short films unrelated to the manga
- OnePiece (music production team), a South Korean music production team
- One-piece swimsuit
- One piece, a modern carbon fibre ice hockey stick